In the first quarter of the year, Microsoft shipped about 900,000 units of its Surface RT and Surface Pro tablets — most of those Surface Pro, according to IDC estimates.
But “beyond the Surface products, Windows 8 and Windows RT tablets continued to struggle to gain traction in the market,” according to the IDC news release, which also noted that total combined Windows 8 and Windows RT shipments across all vendors reached 1.8 million units.